Boiler



Oct. 16, 1934. H, G, SMITH 1 1,977,411

"BOILER Filed Jan. 8, 1954 2 Sheets-Sheet l ATTO R N EY Oct. 16, 1934. Hfs. sMTH Y 1,977,411

BoLER Filed Jan. 8, 1934 A`-2 Sheets-Sheet 2 INVENTQR /oW/WgSM/ ATTORNEY Patented Qct. 16, 1934 ain ,MUNITED STATES PATENT OFFICE 1,977,411 l.BOILER Howard e.. smith, Chinchilla, Pa.. Application January 8, 1934, Serial No. 705,794

claims. #(cl. 122-177) My invention relates to a new and useful boil- Fig. 3 represents a horizontal section on line er and more particularly to a steel boiler which 3-3 of Fig. 2. v can be made in sections to be assembled at the Fig. 4 representsa vertical sectional vView on point of use to facilitate admission through relaline 4-4 of Fig. 2. 5 tively small doors andwindows or which can Fig. 5 represents a horizontal sectional view on tu be made in one piece in relatively smaller sizes. line5-5 of Fig. 2.

My invention still further relates to a boiler Referringto the drawings in which like refof -this character, the structure and design ot erence characters indicate like parts, my novel which is calculated to insure positive and rapid boiler comprises a front water head 1 and a rear circulation to facilitate the production of steam Water head 2 suitably interconnected by means 55 and to reduce or prevent the formation of scales of any desired number of spaced tubes which A on the inner surfaces of `the boiler. are` inclined downwardly and rearwardly from My invention still further relates to a boiler or the front head 1` .to the rear head2. The upper this character in which the water is exposed to portions of the front and rear heads 1 and 2 the generatedheat in relatively thin tubes to are also interconnected by the storage or liberiti insure rapid heating of the water :and in which ating drum 6 which is preferably inclined from the thin water tubes referred tor-are staggered the front head 1 .t0 the Tear head 2. 8 daig-V above the combustion chamber thereby forcing Hates a Steam outlet which communicates with the heated gases to pass in small volumes between the liberating drum 6 above the water line therethe tubes t0 insure Complete absorption Ofthe Of and 9 designates a lletlllll. CollllGCtBd t0 the .heat of the gases by the Wai-,ey in the tubes return 9 is a cold water inlet 10 which is conthereby increasing the efficiency ofthe boiler. tlOlled by the Valve 11- The Watel` System iS My invention still further relates to a boiler prOVided With a drain vor blowout-inlet (not of this character wherein a relatively large com- ShOWH) The bOler construction so far` debustion chamber is provided to insure complete SCrbed iS entirely Covered 0n al1 Sides With any SQ combustion of the fuel and the generation of Suitable insulating material 12, WhCh may be maximum heat units therefy0m asbestos, aircell-board, or any desired insula- My invention still further relates to a Iboiler of tOD Calculated t0 DleVeIlt heat diSSDatOIl. n this hayagtey which comprises means for readdition to the interconnecting tubes 3 and libgaming the 110W of the gases of Combustion erating drum 6 a series of continuous tubes '13 85 through the combustion and heating chambers t0 16 lead IOm the IOWGT DOltOn 0f the rear Y to insure complete absorption of the heat of the head 2 and after ZgZaggDg upwardly thTOlgh gases of combustion prior to their escape into the upper COmbllStOIl Chamber 14 thy COIlIlCt and through the flue or smoke outlet-, with the upper portion of the front head 1. The

.My invention Stm further rentes to a boiler tubes 13 to- 16 are relatively thin, are somewhat 90 t of this general character in which the circulainclined UDWaldly from the rear head 2 tothe tion of the water in the system is aided by directfront Ahead 1 and ae staggered *.With relation ing the greatest amount of heat to the front t0 fajch other S0 that each length 0f tube is part of the boiler and by inclining the various 1nd1{1dlla11y and directly exposed to the upwardly water tubes interconnecting the front and rear Suglllg htated DTOdU-CtS Of Combustion, aS best water heads of said boiler from the front to the Seen m Fl's' 1 and 4- BClOW the Water heads rear, thus insuring a constant flow of the colder 1 and 2 1S CODStlllCted the le chamber 16 parts of the water backwardly and downwardly which is Completly enclosed as best S6911 in from the upper drum into the rear head and con- F1g-s' 2 and 3 except for @he Opening 17 though .45 versely forcing the hotter parts of the water up- Whlch the n0Z.Z 1e of an 011 burner (not shown) 190 wardly and forwardly through the tubes into the may be dmltted the burner proper bemg front water head and into the upper front pormotmted m the Guber Chamber .18 access to tion of the liberating drum interconnecting the Whlch may be had through the hmged door 19 h d 20 designates a peep-hole equipped with a front and leal ea SJ Pyrex glass panel or other transparent re 05 Il l the aCCOmPaIlYlllg dmWmgSj h and temperature resisting material. In the walls Flg. lrepresents a .front elevatlOrl 0f a 1001161' of the outer chamber 18 are provided the grill emtodymg my mventlon l openings 21 which serve to admit air into the F1al 2 represents a vertical sectlonal View on outer chamber 18 and through the inlet 17 into 5hline 2-2 of Flg. 1. the combustion chamber proper 16. The fire H0 ful from the oil burner (not shown) is deected by the fire brick refractory lining 22 and the brick 23 towards the front to counteract the present tendency of the gases to escape through the smoke outlet or ue 25 without having had suicient contact with the tubes interconnecting the heads 1 and 2 and with the heads proper. Further to insure complete Contact of the flame and the gases of combustion with the water surfaces exposed in the upper chamber 14 there is provided a baflie 26 which prevents thekdirect entry of any of the gases of combustion directly into the flue 25 so that the ame and the gases.

of combustion are compelled to travel upwardly far enough to abut or impinge against the bottom of the drum 6, the gases nally flowing past the upper edge of the baiile 26 intoy and out through the smoke outlet 25. In operation the flame and the gases of combustion produced in the chamber 16 are deflected upwardly against the central staggered relatively thin tubes 13 to 16 as well as against the inclined tubes 3 and the exposed parts of the water heads 1 and 2, thus creating a greater heat center in the iront portion of the boiler, and this togetherV with the inclination of the tubes 3 and the tubes. 13 to 15 upwardly from the rear towards the front head of the boiler results Ln a very rapid circulation in the direction of the arrows in Fig. the rise of the hot water towards the upper portion of the front head 1 and the front of the drum 6 being accelerated by the gravitational flow of the cold water downwardly from the rear portion of the drum 6 into the rear head 2. This process is also assisted if, as in the present instance, the liberating drum 6 is Valso slightly inclined from the front head1 to the rear head 2. vThe provision for rapid circulation, the deiiection of the flame and products of oombusn tion, as well as the exposure of the vwater to the heat in the manner set forth, result not only in extreme eiciency but in rapid heating of the water and in easy maintenance4 of the water at the degree of heat produced. it will also be noted that my novel boiler is` of an extremely simple construction and that for large installa tions it can be shipped in sections which can be welded together at the point of use or in the event of smaller installations can be completelyy assembled and shipped as a unit ready for immediate connection.

I claim:

l. A boiler comprising in combination front and rear water heads, a plurality of relatively large inclined water tubes interconnecting said heads, a liberating and storage drum interconnecting the upper portions of said water heads,

and a plurality of continuous upwardly zigzagging relatively thin tubes leading from the bottom of the rear water head into the upper portion of said front water head.

2. A boiler comprising in combination front and rear water heads, a plurality of relatively large inclined water tubes interconnecting said heads, a liberating and storage drum interconnecting the upper portions of said water heads, and a plurality of continuous upwardly zigzagging relatively thin tubes leading from the bottom of the rear water head into the upper portion of said iront water head, said upwardly zigzagging relatively thin tubes being disposed in a vertically staggered formation.

v3. A 'boiler comprising in combination front and rear water heads, a plurality of relatively large inclined vwater tubes interconnecting said heads, a liberating and storage drum interconnecting the upper portions of said water heads, a plurality of continuous upwardly zigzagging relatively thin tubes leading from the bottom oI the rear water head into the upper portion of said'front water head, a completely enclosed combustion chamber below said water heads 1 and in the rear of said boiler, and means for defiecting the flame and the gases of combustion forwardly towards the front portion of said boiler.

4. A boiler comprising in combination front and rear water heads, a plurality of relatively large inclined water tubes interconnecting said heads, a liberating and storage drum interconnecting the upper portions of said water heads,

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a plurality of continuous upwardly zigzagging y" relatively thin tubes leadingfrom the bottom of the, rear water head into the upper portion of said front water head, a completely enclosed combustion chamber below said water head and in the rear of said boiler, means for deflecting large inclined water tubes interconnecting said f heads, a forwardly inclined liberating and storage drum interconnecting the upper portions of said water heads, and a plurality of continuous upwardly zigzagging relatively thin tubes leading from the bottom of the rear water head into the upper portion of said front water head.

HOWARD G. SMITH. 

